diff --git a/src/polyrenderer/poly_renderer.cpp b/src/polyrenderer/poly_renderer.cpp
index 1b00412d1..7517083c5 100644
--- a/src/polyrenderer/poly_renderer.cpp
+++ b/src/polyrenderer/poly_renderer.cpp
@@ -209,6 +209,7 @@ void PolyRenderer::SetupPerspectiveMatrix()
 	float fovy = (float)(2 * DAngle::ToDegrees(atan(tan(Viewpoint.FieldOfView.Radians() / 2) / fovratio)).Degrees);
 
 	WorldToView =
+		TriMatrix::rotate((float)Viewpoint.Angles.Roll.Radians(), 0.0f, 0.0f, 1.0f) *
 		TriMatrix::rotate(adjustedPitch, 1.0f, 0.0f, 0.0f) *
 		TriMatrix::rotate(adjustedViewAngle, 0.0f, -1.0f, 0.0f) *
 		TriMatrix::scale(1.0f, level.info->pixelstretch, 1.0f) *
diff --git a/src/polyrenderer/scene/poly_portal.cpp b/src/polyrenderer/scene/poly_portal.cpp
index 8abfb66f5..cbf4ccc9c 100644
--- a/src/polyrenderer/scene/poly_portal.cpp
+++ b/src/polyrenderer/scene/poly_portal.cpp
@@ -59,6 +59,7 @@ void PolyDrawSectorPortal::Render(int portalDepth)
 	float fovratio = (viewwindow.WidescreenRatio >= 1.3f) ? 1.333333f : ratio;
 	float fovy = (float)(2 * DAngle::ToDegrees(atan(tan(viewpoint.FieldOfView.Radians() / 2) / fovratio)).Degrees);
 	TriMatrix worldToView =
+		TriMatrix::rotate((float)viewpoint.Angles.Roll.Radians(), 0.0f, 0.0f, 1.0f) *
 		TriMatrix::rotate(adjustedPitch, 1.0f, 0.0f, 0.0f) *
 		TriMatrix::rotate(adjustedViewAngle, 0.0f, -1.0f, 0.0f) *
 		TriMatrix::scale(1.0f, level.info->pixelstretch, 1.0f) *
@@ -169,6 +170,7 @@ void PolyDrawLinePortal::Render(int portalDepth)
 	float fovratio = (viewwindow.WidescreenRatio >= 1.3f) ? 1.333333f : ratio;
 	float fovy = (float)(2 * DAngle::ToDegrees(atan(tan(viewpoint.FieldOfView.Radians() / 2) / fovratio)).Degrees);
 	TriMatrix worldToView =
+		TriMatrix::rotate((float)viewpoint.Angles.Roll.Radians(), 0.0f, 0.0f, 1.0f) *
 		TriMatrix::rotate(adjustedPitch, 1.0f, 0.0f, 0.0f) *
 		TriMatrix::rotate(adjustedViewAngle, 0.0f, -1.0f, 0.0f) *
 		TriMatrix::scale(1.0f, level.info->pixelstretch, 1.0f) *